4 William St, Copiague, NY 11726 Property Records

Suffolk County and Babylon Town property record for 4 William St, Copiague, NY 11726

Property Summary

Property Type	Single Family Home
Details	1.5 ba · 1,510 sqft · built 1950
Lot Size	0.242 acres (10,560 sqft)
Owner	Company Name on File
Last Sale	$475,000 (Aug 2025)
Tax Bill	$11,538 (2024)
Deeds & Mortgages	Aug 2025 Sale
Flood Zone	Zone X (minimal risk)
APN	`472089 180.-4-66`

Property Details

APN / Parcel Number

Primary APN	`472089 180.-4-66`
Alternative APNs	`0100-180.00-04.00-066.000` `208918000000040660000000` `472000541760` `20222516280` `20232516280` `20252516280`

Interior

Full Baths	1.5 Baths
Half Baths	1 Half Bath
Building Area	1,510 sqft Building Perimeter

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Lot Area	10,560 sqft (0.242 acres)
Lot Dimensions	160 ft deep x 66 ft wide

Location & Zoning

Account Number	20252516280
Street Address	4 WILLIAM ST
City	COPIAGUE
State	NY
Zip	11726-3714
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	C
Legal Description	FILED MAP 1745 LOT 284
Legal Block	4
Legal Lot Number	66
Jurisdiction	SUFFOLK NY
Township / Civil Division	BABYLON
Census Block Group	2
Census Block	2019
Census Tract	123703

Owner

4 William St is owned by a company that bought it in August 2025.

Source: Suffolk County and Babylon Town records, as of August 11, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of Record	Company Name on File
Mailing Address	97 CEDAR ST, HEMPSTEAD, NY 11550-5820
Owner Type	Company
Vesting	Limited Liability Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Aug 25, 2025 · Amount on File
Deed Sale	Aug 25, 2025 · Amount on File
Prior Sale	Mar 7, 2006 · Amount on File
Deed Book / Page	13306 / 580
Prior Transfer Date	Feb 19, 2002
Prior Transfer Doc	0121800230
Record Updated	Sep 20, 2026

August 2025: Executor's Deed, Transfer

Document Type	Executor's Deed
Jurisdiction	SUFFOLK NY
Recording Date	Aug 25, 2025
Property Address	4 WILLIAM ST, COPIAGUE, NY 11726-3714
Document Number	0133060580
Book / Page	13306 / 580
Instrument Date	Apr 29, 2025
Transaction Type	Transfer
Record Updated	Apr 21, 2026

Transaction

Amount	Amount on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	97 CEDAR ST, HEMPSTEAD, NY 11550-5820

Tax Assessment & Valuation

Source: Suffolk County and Babylon Town assessment roll, as of August 11, 2026

Property Jurisdictions

Type	Name
State	New York
County	Suffolk County
County Subdivision	Babylon Town
Unified School District	Copiague Union Free School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$3,530 Land $310 Building $3,220	$598,305 (+11,255.19%) Land $52,542 Building $545,763
2024	$11,538.00		$5,269 (-1.5%) Land $463 Building $4,806
2023		$3,530 Land $310 Building $3,220	$5,349 Land $470 Building $4,879

Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.

Flood

FEMA maps place 4 William St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Flood Insurance Cost	Premium on File median of 10 policies
Community Rating System	Class 10 (0% premium discount)
Nearby Flood Policies	10 in force

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

The area around 4 William St has no burnable land within ember reach, so its wildfire risk is not rated.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Not rated no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526
Water Source	Groundwater
Last State Inspection	Jan 2024
Lead	1 ppb (2025–2027) action level 15 ppb

Violations Reported to EPA

Water Quality	Asbestos resolved · Jul 2020
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 562 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Optimum Fiber · Cable	8,000 / 8,000
Verizon Fiber · Fixed Wireless in parts of the area	2,300 / 2,300
T-Mobile Fixed Wireless	100 / 20